Double glazing construction



March 31, 1942. w. OWEN DOUBLE GLAZING CONSTRUCTION Filed Oct. 21, 1959 ATTORNEY.

Patented Mar. '31, 1.942 i UNITED .STATE nocaut -GLAzING coNsTaUc'rloN william owen,

Pittsburgh, Pa., assignor to Pittsburgh Plate Glass Company,

Allegheny County,

Pa., acorporation of Pennsylvania Application October 21, 1939, Serial No. 300,562

(Cl. Ztl-56.5)

1 Claim.

The present invention relates to multiple glazing and more particularly to a double glazed window construction.

one object of the invention' is the provision of an improved supporting means by means of which the glass panes are maintained in spaced relation within a frame element. y

A further object of the invention is to provide a construction wherein the glass panes may be inserted or removed very easily, but which at the same time affords adequate protection against displacement due to vibration.

Other objects and advantages of the invention will become more apparent from the following detailed description of certain embodiments thereof.

In the accompanying drawing,

Figure 1 is a vertical sectional view of a construction formed in accordance with the provisions of theinvention. Y

Figures 2, 3, and-4 are vertical sectional views of additional forms of the invention.

Referring to the drawing, a channelframe I, formed of sheet metal, is yprovided with an in- -wardly-extending flange 2 and a ledge 3 disposed at right angles thereto. The ledge 3 may be of any desired width and if necessary may be strengthened through the addition of rein- A forcing strips. An inwardly-extending-section 4 is formed at, the outer edge of the ledge lying in spaced parallel relation to the flange 2.

A block 'l of resilient material such as rubber, synthetic resin, or the like, is seated upon the ledge and is provided with a lip 8 extending from its leading edge which overlaps the flange 2. This lip also provides a weather seal for the channel frame. Spaced grooves 9 -formed in the inner face of the' block 1 receive glass panes I0. A retainer strip II, substantially of L-shape in cross-section, serves to compress the block 1,

' securing the panes I0 therein. The retainer Il,

framed from spring steel, comprises a horizontal member I2 which lies between the ledge 3 and the block 1 and a vertical section I3 which rests along the rear edge of the, block 1. The retainer interlocks with the section 4 of the ledge, thus forming the several elements into a unitary structure, that is held under compression by the conjoint action of the resilient members 'I and II.

In the form of the invention illustrated in Figure 2, a channel frame similar to that already described, is employed as a support for the construction. The resilient block 1 is so formed that a retainer strip I5 may be more easily interstrip is moved into place.

posed between it and the ledge 3. The retainer strip l5, shaped from spring steel, is substantially of L-shape in cross-section and is provided with a horizontal section I6, which flts between the flange '2 and the section 4 of the ledge. A second horizontall sectionv I1, offset from the section I6, extends beyond the block 1, and a ver\ tical portion |8 of the retainer has an offset finger I9 which presses against the block 1, thus providing a more positive. compression thereof.

Another form of the invention is illustrated in Figure 3 wherein a special retainer 2| is employed. Thel retainer 2| is provided with a section v22 lying between the block 'I and the ledge 3 and a section 23, which is provided with an offset toe 24 to lock with the inwardly-extending section 4 of the ledge 3. In this manner additional compression of the block 'l is afforded, through an upward pressure on the bottom of the block 1 and an inward pressure against the side of the block exerted by the retainer 2|.

A further form of the invention shown in Figure 4 wherein a channel frame 26 is provided with a flange 21 extending inwardly therefrom and a ledge 28 disposed substantially at rightangles tc the frame. The ledge 28 has an offset portion 29 immediately adjacent to the flange 21. A block 3| of resilient material is seated upon the ledge 28 and is provided with a lip 32 extending from its leading edge and lying over the flange 21. Spaced grooves 33 formed -in the inner surface of the block receive and support glass panes 34. A retainer strip 35 of spring steel substanf tially ofV vL-shape cross-section is provided with a horizontal section 36 interposed between the block 3| and the ledge 28 and ending in a finger 31 which interlocks with the offset portion 29 of the ledge. A vertical section 38 contains an offset portion 39 which presses against the block 3| adjacent the inner surface thereof and a flange 4? overlapping the inner surface of the block 3 The unit as illustratedis very readily assembled. The channel frame is -position'ed in the permanent structure in which the unit is to be carried, the glass panes are seated within the resilient block and placed in the frame. The lip which extends from the block is lapped over the flange extending from the frame and the retainer As the retainer strip is forced into position, it, of course, results in a compression ofthe resilient block and thus a positive seal of the space between the glass panes is effected. Since the retainer strip automatically locks into the frame the several elements are combined in va unitary structure, with all the resilient members in compression or under load providing a tight, anti-rattle, glazing unit.

It will at once be apparent that various modications in the form and arrangement of the several elements of the disclosed construction are possible without departing from the spirit of. the invention or the scope of the appended claim.

What I claim is:

A double glazing construction* comprising a channel frame, a flange vextending inwardly therefrom, a ledge disposed at right angles to the Aframe, an inwardly extending section formed at the outerl edge of the ledge in spaced parallel tion of the ledge, and having a vertical portion -compressingthe resilient block to seal the edges of the glass panes therein.

WILLIAM OWEN. 

